ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,707,731, issued on Aug. 11, was assigned to The Regents of the University of California (Oakland, Calif.).
"Light-driven ultrafast electric gating" was invented by Samuel Ciocys (Berkeley, Calif.) and Alessandra Lanzara (Piedmont, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A source and drain electrode are spaced apart by an optically exposed gate region above a surface photovoltage effect (SPV) bulk. A two-dimensional material is deposited upon the gate region. The gate region is activated by exposure to an ultrafast light pulse, which may be infrared or near-infrared, and may be a focused collimated laser pulse with a sub-picosecond width. T...